51120207166216 has 32 divisors (see below), whose sum is σ = 96290267832000. Its totient is φ = 25442851847616.

The previous prime is 51120207166181. The next prime is 51120207166219. The reversal of 51120207166216 is 61266170202115.

It is a super-2 number, since 2×51120207166216² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51120207166219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5191395 + ... + 11366221.

It is an arithmetic number, because the mean of its divisors is an integer number (3009070869750).

Almost surely, 2^{51120207166216} is an apocalyptic number.

It is an amenable number.

51120207166216 is a deficient number, since it is larger than the sum of its proper divisors (45170060665784).

51120207166216 is a wasteful number, since it uses less digits than its factorization.

51120207166216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179581 (or 6179577 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 51120207166216 in words is "fifty-one trillion, one hundred twenty billion, two hundred seven million, one hundred sixty-six thousand, two hundred sixteen".